<div dir="ltr"></div></font></blockquote></div><br>You gave an example about how your data structure look like, but I haven&#39;t seen an example case of &quot;quasi-mutating&quot; an expression of such data structures. If you give a concrete example, people can suggest better ways of doing it, it there are any.<br clear="all">
<br><div>Best,</div><div>Ozgur</div>